C# .net Library Question [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can b开发者_如何学JAVAe reopened, visit the help center. Closed 12 years ago.

What are the top 5 most useful/used .net libraries a C# developer would need to know?

Thanks in advance.

---

See this thread: Most useful free .NET libraries?

---

System, System.XML, System.Web, System.Drawing, System.Data

or what do you mean?

---

Mine would be the following

Nhibernate

Structure Map

Lucene

Rhino Mocks

Nunit

---

nUnit, Moq, Spring.NET, nHibernate, and Lucene would be my choices.